Finding the Fourth Proportional to 9,080.78, 12,531.78 and 5,101.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,080.78 : 12,531.78 = 5,101.70 : x
2. Step 2: Convert to fraction form
   9,080.78/12,531.78 = 5,101.70/x
3. Step 3: Cross multiply
   9,080.78x = 12,531.78 × 5,101.70
4. Step 4: Simplify right side
   9,080.78x = 63,933,382.03
5. Step 5: Solve for x
   x = 63,933,382.03/9,080.78
6. Step 6: Final answer
   x = 7,040.52